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72212/72487 Imperial Tapered Roller Bearing
- Imperial Bore Precision: Designed to fit standard 2.125-inch shaft journals in global commercial equipment.
- High Thrust Capacity: Steeper contact angle geometry effectively manages heavy axial forces alongside radial weight.
- Separable Cup & Cone: Allows independent mounting of the inner assembly and outer ring for easier installation.
- Micro-Finished Raceways: Honed contact surfaces reduce friction, minimize operating heat, and extend grease life.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 53.975 mm |
| Outer Diameter (D) | 123.825 mm |
| Total Width (T) | 36.512 mm |
| Precision Standard | ABEC-1 / P0 |
Product Specifications
| Specification | Details |
| Item Type | Imperial Tapered Roller Bearing |
| Model Number | 72212/72487 (Cone: 72212 / Cup: 72487) |
| Bearing Design | Single Row Tapered |
| Material | Premium GCr15 Chrome Steel |
| Cage Material | Stamped Steel |
Product Introduction
The 72212/72487 is a heavy-duty imperial tapered roller bearing belonging to the robust 72000 series family. Featuring precise dimensions of 53.975 x 123.825 x 36.512 mm (2.125-inch bore), this cup and cone assembly is engineered to withstand substantial combined radial and thrust loads. Forged from high-purity GCr15 chromium steel and subjected to deep case-hardening heat treatment, it provides exceptional resistance to surface fatigue and raceway spalling. It is an ideal, high-reliability component for international B2B distributors serving industrial gearbox rebuilders and commercial vehicle axle manufacturers.
Applications
Commercial vehicle driveshafts and heavy-duty differentials.
Industrial speed reducers, conveyors, and gearboxes.
Agricultural machinery wheel ends and PTO shafts.
FAQ
Q: Can the 72212 cone be paired with other cups?
A: Yes, in standard inch-series convention, the 72212 cone can be combined with other compatible cups within the 72000 series depending on the housing design.
Q: What is the temperature tolerance for this bearing?
A: Standard GCr15 construction operates reliably between -30°C and +120°C using standard industrial lubricants.
OEM & Custom Service
B2B manufacturing options include custom laser etching, specialized low-noise greasing, private label box artwork, and batch quality certification.
Packing & Delivery
Protected with anti-rust fluid, hermetically sealed in VCI plastic bags, packed in individual cartons, and stacked securely on heat-treated export pallets.
